发明名称 |
Optical printer |
摘要 |
An optical printer using laser beams, wherein, when a plurality (n) of laser beams are used at once to carry out a scanning operation, the positions of spots of said laser beams in both the primary scanning direction and sub-scanning direction are set so as to have the relation l=(n-1)a+mxnxa, wherein m is a positive integer (m>/=1); a the distance between the adjacent scanning lines in the sub-scanning direction on the printing surface of the optical printer after a printing operation; and l the distance between the adjacent laser beams in the sub-scanning direction on the surface of a photosensitive drum, whereby a high-quality printing effecting no overlapping and omission of images can be obtained even if the distance between the adjacent laser beams is increased during a scanning operation using a plurality of laser beams at once.
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申请公布号 |
US4806951(A) |
申请公布日期 |
1989.02.21 |
申请号 |
US19880153005 |
申请日期 |
1988.02.08 |
申请人 |
HITACHI KOKI CO., LTD.;HITACHI LTD. |
发明人 |
ARIMOTO, AKIRA;SAITO, SUSUMU;MOCHIZUKI, TAKESHI |
分类号 |
B41J2/44;G02B26/10;G03G15/04;G06K15/12;H04N1/04;H04N1/23;(IPC1-7):G01D9/42;G01D15/14 |
主分类号 |
B41J2/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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